Improvement in till-lock



tutti aan.

JOHN P. SCHMUCKEILOF LATTASBURG, OHIO.

Letters Patent No. 93,644, dated August 10, 1869; antedated August 4, 1869.

IMPROVEMENT IN TILL-LOCK.

The Schedule referred to in these Letters Patent and makingpart of the same.

To all whom it may concern Beit known that I, J 015m P. ScHMUcKnR, of Lattasburg,`in the county of Wayne, and State of Ohio, have invented a certain new and useful Improvement in Trick-Lock; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the construction andlarrangement of a trick-lock, which is intended to be usedon drawers in counters, Sto., and which nobody, not acquainted with its operation, can open.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to desclibe its construction and operation, referring to the annexed drawings, which form a part of this specification, and in which- Fi'gure l is a longitudinalA vertical section of a drawer, with my lock attached;

Figure 2 is a front'view of the lock;

,Figure 3, a rear view of the same; and

Figure 4, a view of .the platev coverin g the back of the lock.

A represents the lo'ckbox, which consists merely `of a rectangular' frame, placedou the inside'of thegdrawer B, and provided with a plate, O, covering its rear side, said plate' having ears Aor projections, tt a., through which screws pass into the front side of the drawer, thus h'rmly securing the lock-box to the same.

Through a slot in the upper side of the lock-box A, the latch lD projects. This latch, consisting of a Vsquare bar, passing through the box, is held up by said follower; and a projection, d, fitting into a"`notchin the upper part ofthe box,'prevents any lateral m0- tion of the follower until it is soA far depressed that the projection d escapes from the notch. VThe follower E is also, by another spring, e, held close to that side ofthe box farthest from the lat-ch D.

A shaft, F, passes through the follower E, and is, on its inner end, provided with a wheel, G, having its periphery corrugated-, andis of such size that when th'e follower is in itsY proper position, as above described, the wheel will not touch the latch D.

The front end ,of the shaft F passes through a large hole, j', in the front side of the boxB, and is provided with a knob, H, 'said knob being so shaped as to entirely hide the hole f.

To open the lock, the knob His seized with the right hand; then press down upon the knob as far as 'it will go, that is, until the projection d is released from its notch; holding on to the knob, press hard to the right as far as possible, when thecorrugatcd wheel Gwill gear into the corrugations on the latch D, so that by still holding on to the knob and turning it, the latch will be drawn into the lock-box, and the drawer can be pulled out.

. In the frontend of the knob H is a pin, I, which is held outward by a spiral spring, and a rod, ,'passes from said pin through the shaft F and wheel G, extending as far as the rear plate C, but not through the same. A vertical slot, 1t, is in said plate, so that if the pin I is pressed outward, the rod t will pass through the same; but the lockA could not be opened,

this would prevent theknob and follower from being moved sideways, even if depressed.

rIhis arrangement is only intended to mislead anybody attempting to open the drawer. 'It is evident that when taking hold ofthe knob, the person will at once feel the pin I yield, and, ofcourse, think that it has somethingjto do with openig the look. Hence,

when the lock is to be opened, cape should be taken not to press the pin I inward at all Having thus fully described my iwnvention,

What Iclaim as new, and desirei to secure by Letters Patent, is' ,i l.

1. The combination of the follower E, provided with projection tl, springs c and e, shaft F, corrugated wheel G, rack D, and spring b, all substantially as and for the purposes herein set forth.

2. The arrangement of the knob H, shaft F, pin I, with itsspiral spring and/rod t, and plate C, all substantially as and for the purposestherein set forth.

3. A lock so constructed that, topen the sain/e, it

shall be necessary to press the knob tand spindle of Witnesses J. H. GARR, l S. R. BoNEwIrz. 

